Inventors:
Tom H. Rasberry - Kennett MO
Assignee:
Emerson Electric Co. - St. Louis MO
International Classification:
H02K 1504
Abstract:
Apparatus (10) and method for bonding together coils of an electrical wire forming windings (W) of a stator assembly (54) employed in making an electric motor. The apparatus includes a fixture (22) on which the stator assembly is installed during a bonding operation, the fixture also holding the stator assembly during a surge test which precedes the bonding operation. Electrical connectors (38) are used to electrically connect the stator windings to the apparatus, and these electrical connections are used for both the surge test and the bonding operation. A power supply unit (16) is responsive to an indication that the stator windings have successfully passed a surge test to apply a predetermined voltage to the windings. The current flowing through the stator windings as a result of the applied voltage is measured. A bonding control unit (50) controls the bonding operation.